Sand blasting equipment capable of conveniently adjusting air pressure

Abstract

The utility model discloses sand blasting equipment capable of conveniently adjusting air pressure. The sand blasting equipment comprises a box body, an equipment cabin is fixed at the top of the box body, an operation room is arranged in the box body, an air compressor is arranged in the equipment cabin, an air outlet pipe of the air compressor is connected with a pressure adjusting valve, the pressure adjusting valve is arranged on one side in the equipment cabin, and an outlet of the pressure adjusting valve is connected with an air spraying pipe. Air flow pressure in the air spraying pipe can be detected through the pressure gauges, data are fed back and displayed on the first pressure gauge, a user can regulate and control the air flow pressure in the pipeline according to the monitored data, high-speed air flow flowing into the pressure regulating valve can be regulated by rotating the pressure regulating knob, and therefore the air flow speed and pressure are further changed, and the user can conveniently use the pressure regulating valve. And the air pressure value in the operation room is monitored in real time through the air pressure detection element, a user regulates and controls the fan to operate according to the monitored value, the air amount in the operation room is reduced, the air pressure is reduced, and the sand blasting work can continue to be normally carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of sandblasting equipment, in particular to sandblasting equipment which is convenient for adjusting air pressure. Background Art

[0002] In industrial production, ceramic materials are often used in a variety of applications due to their excellent physical and chemical properties. These ceramic surfaces are coated with aluminum oxide layers during use to enhance their performance. Over time, these coatings may wear or become damaged and require regeneration, which requires removing the coating from the workpiece surface and creating the required roughness on the workpiece surface to facilitate re-coating. Sandblasting machines are often used in industrial production for rust removal, coating removal, etc.

[0003] Sandblasting machines are mainly used to remove scale, residue, dirt from metal workpieces such as castings, stampings, welded parts, and heat-treated parts, clean the surface of non-metallic products, remove black spots on the surface of ceramic embryos, and restore paint patterns. Due to the impact and cutting effect of steel sand on the surface of the workpiece, the surface of the workpiece can obtain a certain degree of cleanliness and different degrees of roughness, so that the mechanical properties of the workpiece surface are improved.

[0004] Existing sandblasting equipment generally performs sandblasting in a confined space. During the sandblasting process, it is impossible to monitor and regulate the airflow pressure in the pipeline in real time. When the airflow pressure does not change, the sandblasting injection rate remains unchanged, which is not suitable for the rust removal and coating removal needs of different workpieces. It is impossible to monitor the atmospheric pressure in the confined space in real time. As the sandblasting proceeds, a large amount of air will be injected into the confined space by the spray gun, causing the atmospheric pressure in the space to continue to rise. When the atmospheric pressure is too high, it will hinder the injection of sandblasting in the spray gun, reduce the sandblasting injection rate, and affect the effect of sandblasting for rust removal or coating removal. Utility Model Content

[0005] The utility model aims to provide a sandblasting device with convenient air pressure adjustment to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sandblasting device with convenient air pressure regulation comprises a box body, an equipment cabin is fixed on the top of the box body, an operating room is arranged inside the box body, an air compressor is installed in the equipment cabin, an air outlet pipe of the air compressor is connected to a pressure regulating valve, the pressure regulating valve is installed on one side inside the equipment cabin, an outlet of the pressure regulating valve is connected to an injection pipe, a pressure gauge is installed at one end of the injection pipe close to the pressure regulating valve, an end of the injection pipe away from the pressure regulating valve passes through the equipment cabin and the inner wall of the box body and extends to the operating room, and the end of the injection pipe is connected to a Rafael spray gun through a joint, a sandblasting hole is arranged on the Rafael spray gun, and the Rafael spray gun is also connected to a sand suction pipe through a joint.

[0008] As a further solution of the utility model: a shell is installed on the rear side of the box body, a fan is installed on one side of the top of the shell, and multiple filter cartridges are installed inside the shell, and the multiple filter cartridges are connected to the air inlet end of the fan through an exhaust pipe.

[0009] As a further solution of the utility model: a plurality of reserved holes are opened on the inner wall of the rear portion of the box body, an air intake pipe is provided at one end of each of the filter cartridges away from the fan, and one end of each of the air intake pipes penetrates the inner wall of the shell body and extends into the operating room through the reserved holes on the corresponding side, and a sealing ring is provided at the connection between the air intake pipe and the reserved hole.

[0010] As a further solution of the utility model: a silo is fixed at the bottom of the box body, a hopper with a valve is fixed at the bottom of the silo, a bottom plate is detachably connected between the silo and the box body, an opening is provided on the bottom plate and a screen is fixed in the opening.

[0011] As a further solution of the utility model: one end of the sand suction pipe passes through the bottom plate and is inserted into the sand material inside the silo, and the air injection pipe and the sand suction pipe are both retractable hoses.

[0012] As a further solution of the utility model: a pressure regulating knob is provided on the side of the equipment cabin outside corresponding to the pressure regulating valve, the pressure regulating knob is connected to the pressure regulating valve, a first pressure gauge is installed on the side of the equipment cabin outside corresponding to the pressure gauge, the first pressure gauge is connected to the pressure gauge through a wire, a power switch is installed on the side of the equipment cabin outside close to the first pressure gauge, the power switch is used to control the power supply of the equipment cabin and the electrical appliances in the box, a fan switch is installed on the side of the equipment cabin outside close to the power switch, and a second pressure gauge is installed on the side of the equipment cabin outside close to the fan switch.

[0013] As a further solution of the utility model: an air pressure detection element is installed on one side inside the operating room, and the air pressure detection element is connected to the second pressure gauge through a wire. The air pressure detection element is used to detect the air pressure inside the operating room and feedback the detection data to be displayed on the second pressure gauge.

[0014] As a further solution of the utility model: the box body and the shell are both supported on the ground by legs arranged at the bottom, an observation window is arranged on the front side of the box body, a box door is arranged on the front side of the box body below the observation window, an operation hole is reserved on the box door, an operating glove is sealed in the operation hole, and a sealing strip is arranged on the outer edge of the box door.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In the utility model, the air compressor is started to pump high-speed airflow into the jet pipe, and the airflow is ejected outward from the sandblasting hole. At this time, the sand suction pipe connected to the spray gun sucks the sand in the silo into the pipe under the action of the Venturi effect and ejects it outward from the sandblasting hole. The operator holds the spray gun and can perform sandblasting and rust removal. Furthermore, the pressure gauge can detect the airflow pressure in the jet pipe and feed back and display the data on the first pressure gauge. The user can adjust the airflow pressure in the pipeline according to the monitoring data, and the high-speed airflow flowing into the pressure regulating valve can be adjusted by turning the pressure regulating knob, thereby further changing the airflow speed and pressure to meet the needs of different sandblasting work;

[0017] 2. In the utility model, the air pressure value in the operating room is monitored in real time by the air pressure detection element, and the relevant numerical feedback is displayed in the second pressure gauge. When the air pressure value exceeds the specified value, the sandblasting of the spray gun will be hindered. At this time, the user can press the fan switch to start the fan. After the fan is started, the air mixed with dust in the operating room is sucked into the filter cartridge through the coordinated use of the exhaust pipeline and the air intake pipeline, thereby reducing the gas volume inside the operating room and lowering the air pressure until the air pressure value inside the operating room is reduced to the specified value. At this time, the air pressure inside the operating room returns to normal, and the sandblasting work can continue normally. The gas inside the operating room can be extracted by the fan, and the gas can be filtered by the filter cartridge to prevent dust from floating in the air and affecting the health of users and protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a schematic diagram of the internal structure of the box in the utility model.

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 It is a rear structural schematic diagram of the box body in the utility model.

[0023] Figure 5 It is a schematic diagram of the internal structure of the shell in the utility model.

[0024] Figure 6 It is a side structural schematic diagram of the shell in the utility model.

[0025] Notes on figure numbers: 1-box, 2-shell, 3-leg, 4-fan, 5-equipment compartment, 6-observation window, 7-box door, 8-operation hole, 9-operation room, 10-bottom plate, 11-screen, 12-silo, 13-hopper, 14-jet pipe, 15-sand suction pipe, 16-air compressor, 17-first pressure gauge, 18-power switch, 19-fan switch, 20-second pressure gauge, 21-pressure regulating knob, 22-air pressure detection element, 23-reserved hole, 24-connector, 25-Rafale spray gun, 26-sandblasting hole, 27-pressure regulating valve, 28-pressure gauge, 29-filter cartridge, 30-exhaust pipeline, 31-intake pipeline. DETAILED DESCRIPTION

[0026] The following embodiments will be combined with the accompanying drawings to describe the utility model in detail. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the utility model are only used to illustrate the utility model, and are not used to limit the scope of the utility model. Any obvious modifications or changes made to the utility model do not depart from the spirit and scope of the utility model.

[0027] Example 1

[0028] See also Figure 1In an embodiment of the utility model, a sandblasting device for conveniently adjusting air pressure comprises a box body 1, a shell body 2 is installed on the rear side of the box body 1, the box body 1 and the shell body 2 are supported on the ground by legs 3 arranged at the bottom, a fan 4 is installed on one side of the top of the shell body 2, an equipment cabin 5 is fixed on the top of the box body 1, an observation window 6 is arranged on the front side of the box body 1, a box door 7 is arranged on the front side of the box body 1 below the observation window 6, an operation hole 8 is reserved on the box door 7, an operation glove is sealed in the operation hole 8, when sandblasting, the user's hand passes through the operation hole and puts on the operation glove, and extends the hand into the box body for operation, the outer edge of the box door 7 is provided with a sealing strip, when the box door 7 is closed, the sealing strip seals the inside of the box body to prevent sand from leaking from the edge of the box door during sandblasting.

[0029] See also Figure 2 , Figure 3 , Figure 4 An operation room 9 is arranged inside the box 1. Sandblasting is completed in the operation room to avoid sand splashing during sandblasting. At the same time, the sand can be recycled. A silo 12 is fixed at the bottom of the box 1. A bottom plate 10 is detachably connected between the silo 12 and the box 1. The bottom plate 10 can be opened. After opening, the silo is connected to the inside of the box. An opening is arranged on the bottom plate 10 and a screen 11 is fixed in the opening. When sandblasting, the sand can pass through the screen and fall back into the silo for repeated use. A hopper 13 with a valve is fixed at the bottom of the silo 12.

[0030] An air compressor 16 is installed in the equipment cabin 5, and the air outlet pipe of the air compressor 16 is connected to a pressure regulating valve 27, and the pressure regulating valve 27 is installed on one side of the equipment cabin 5. The outlet of the pressure regulating valve 27 is connected to a jet pipe 14, and a pressure gauge 28 is installed at one end of the jet pipe 14 close to the pressure regulating valve 27. The end of the jet pipe 14 away from the pressure regulating valve 27 passes through the equipment cabin 5 and the inner wall of the box 1 to extend to the operating room 9, and the end of the jet pipe 14 is connected to a Rafael spray gun 25 through a joint 24, and the Rafael spray gun 25 is provided with a sandblasting hole 2 6. The Rafale spray gun 25 is also connected to a sand suction pipe 15 through a joint 24. One end of the sand suction pipe 15 penetrates the bottom plate 10 and is inserted into the sand inside the silo 12. The jet pipe 14 and the sand suction pipe 15 are both retractable hoses. The air compressor 16 is started to pump high-speed air into the jet pipe 14, and the air is ejected outward from the sand blasting hole 26. At this time, the sand suction pipe 15 connected to the spray gun sucks the sand in the silo 12 into the pipe under the action of the Venturi effect and ejects it outward from the sand blasting hole 26. The operator can perform sandblasting and rust removal by holding the spray gun;

[0031] An air pressure detection element 22 is installed on one side of the operating room 9, and the air pressure value inside the operating room can be detected by the air pressure detection element 22. When the air pressure value is greater than a specified threshold, the sandblasting of the spray gun will be hindered. A plurality of reserved holes 23 are opened on the inner wall of the rear part of the box body 1, and a pressure regulating knob 21 is provided on the side of the equipment cabin 5 corresponding to the pressure regulating valve 27. The pressure regulating knob 21 is connected to the pressure regulating valve 27. When the pressure regulating knob 21 is turned, the pressure of the high-speed airflow flowing into the pressure regulating valve 27 can be adjusted, and the airflow speed and pressure can be further changed to meet the needs of different sandblasting operations;

[0032] A first pressure gauge 17 is installed on the side of the equipment cabin 5 corresponding to the pressure gauge 28. The first pressure gauge 17 is connected to the pressure gauge 28 through a wire. The airflow pressure detected by the pressure gauge 28 can be fed back and displayed on the first pressure gauge 17, which is convenient for users to view and adjust the airflow pressure in real time.

[0033] A power switch 18 is installed on the side of the equipment compartment 5 outside near the first pressure gauge 17. The power of the equipment can be turned on by pressing the power switch. A fan switch 19 is installed on the side of the equipment compartment 5 outside near the power switch 18. The power of the fan 4 can be connected by pressing the fan switch 19. A second pressure gauge 20 is installed on the side of the equipment compartment 5 outside near the fan switch 19. The second pressure gauge 20 is electrically connected to the air pressure detection element 22 through a wire. The air pressure detection element 22 detects the air pressure value inside the box and displays the numerical feedback on the second pressure gauge 20. The user adjusts the operation of the fan 4 according to the detected air pressure value, and then adjusts the air pressure inside the box to avoid excessive air pressure affecting sandblasting.

[0034] Example 2

[0035] See also Figure 5 , Figure 6 On the basis of Example 1, a plurality of filter cartridges 29 are installed inside the housing 2, and the filter cartridges 29 can filter dust. The plurality of filter cartridges 29 are connected to the air inlet end of the fan 4 through an exhaust pipe 30, and an air inlet pipe 31 is provided at one end of the plurality of filter cartridges 29 away from the fan 4, and one end of the plurality of air inlet pipes 31 penetrates the inner wall of the housing 2 and extends to the operating room 9 through the reserved hole 23 on the corresponding side, and a sealing ring is provided at the connection between the air inlet pipe 31 and the reserved hole 23 to prevent air leakage;

[0036] The air pressure value in the operating room 9 is monitored in real time by the air pressure detection element 22, and the relevant numerical feedback is displayed in the second pressure gauge 20. When the air pressure value exceeds the specified value, the sandblasting of the spray gun will be hindered. At this time, the user can press the fan switch 19 to start the fan 4. After the fan 4 is started, the air mixed with dust in the operating room 9 is sucked into the filter cartridge 29 through the coordinated use of the exhaust pipe 30 and the intake pipe 31, so as to reduce the gas volume inside the operating room and reduce the air pressure until the air pressure value inside the operating room is reduced to the specified value. The gas inside the operating room can be extracted by the fan, and the gas can be filtered by the filter cartridge to prevent dust from floating in the air and affecting the health of users and protecting the environment.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sandblasting device with convenient air pressure adjustment, comprising a box (1), a device cabin (5) being fixed on the top of the box (1), characterized in that: An operating room (9) is arranged inside the box (1), an air compressor (16) is installed in the equipment cabin (5), an air outlet pipe of the air compressor (16) is connected to a pressure regulating valve (27), the pressure regulating valve (27) is installed on one side inside the equipment cabin (5), an outlet of the pressure regulating valve (27) is connected to an injection pipe (14), a pressure gauge (28) is installed at one end of the injection pipe (14) close to the pressure regulating valve (27), an end of the injection pipe (14) away from the pressure regulating valve (27) passes through the equipment cabin (5) and the inner wall of the box (1) and extends into the operating room (9), and the end of the injection pipe (14) is connected to a Rafael spray gun (25) via a joint (24), a sand blasting hole (26) is arranged on the Rafael spray gun (25), and the Rafael spray gun (25) is also connected to a sand suction pipe (15) via a joint (24).

2. The sandblasting equipment with convenient air pressure adjustment according to claim 1, characterized in that: A shell (2) is installed on the rear side of the box body (1), a fan (4) is installed on one side of the top of the shell (2), and a plurality of filter cartridges (29) are installed inside the shell (2), and the plurality of filter cartridges (29) are connected to the air inlet end of the fan (4) through an exhaust pipe (30).

3. The sandblasting equipment with convenient air pressure adjustment according to claim 2, characterized in that: A plurality of reserved holes (23) are provided on the inner wall of the rear portion of the box body (1); an air intake pipe (31) is provided at one end of each of the plurality of filter cartridges (29) away from the fan (4); one end of each of the plurality of air intake pipes (31) penetrates the inner wall of the housing (2) and extends into the operating room (9) through the reserved hole (23) on the corresponding side; and a sealing ring is provided at the connection between the air intake pipe (31) and the reserved hole (23).

4. The sandblasting equipment with convenient air pressure adjustment according to claim 3, characterized in that: A silo (12) is fixed at the bottom of the box body (1), a hopper (13) with a valve is fixed at the bottom of the silo (12), a bottom plate (10) is detachably connected between the silo (12) and the box body (1), an opening is provided on the bottom plate (10), and a screen (11) is fixed in the opening.

5. The sandblasting equipment with convenient air pressure adjustment according to claim 4, characterized in that: One end of the sand suction pipe (15) passes through the bottom plate (10) and is inserted into the sand material inside the silo (12); the air injection pipe (14) and the sand suction pipe (15) are both retractable hoses.

6. The sandblasting equipment with convenient air pressure adjustment according to claim 5, characterized in that: A pressure regulating knob (21) is provided on the side of the equipment cabin (5) outside corresponding to the pressure regulating valve (27), and the pressure regulating knob (21) is connected to the pressure regulating valve (27). A first pressure gauge (17) is installed on the side of the equipment cabin (5) outside corresponding to the pressure gauge (28), and the first pressure gauge (17) is connected to the pressure gauge (28) through a wire. A power switch (18) is installed on the side of the equipment cabin (5) outside close to the first pressure gauge (17), and the power switch (18) is used to control the power supply of the electrical appliances in the equipment cabin (5) and the box (1). A fan switch (19) is installed on the side of the equipment cabin (5) outside close to the power switch (18), and a second pressure gauge (20) is installed on the side of the equipment cabin (5) outside close to the fan switch (19).

7. The sandblasting equipment with convenient air pressure adjustment according to claim 6, characterized in that: An air pressure detection element (22) is installed on one side inside the operating room (9), and the air pressure detection element (22) is connected to the second pressure gauge (20) via a wire. The air pressure detection element (22) is used to detect the air pressure inside the operating room (9) and feed back the detection data to be displayed on the second pressure gauge (20).

8. The sandblasting equipment with convenient air pressure adjustment according to claim 2 or 7, characterized in that: The box body (1) and the shell body (2) are both supported on the ground by supporting legs (3) arranged at the bottom; an observation window (6) is arranged on the front side of the box body (1); a box door (7) is arranged on the front side of the box body (1) below the observation window (6); an operating hole (8) is reserved on the box door (7); an operating glove is sealed in the operating hole (8); and a sealing strip is arranged on the outer edge of the box door (7).

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